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In most arena battlers, your account level (often represented as a King Tower or Base Headquarters) dictates the health and damage of your main defensive structures.
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Therefore, understanding exactly how to efficiently generate account experience points (XP) is vital for long-term survival on the ladder.
+The Primary Source: Upgrading Cards
+
Every time you spend gold to increase a card's level, you are rewarded with a burst of experience points.
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Conversely, upgrading a card to the absolute maximum level costs massive amounts of gold for a relatively small XP return.
+Upgrade your main deck first, always.It is the most efficient conversion rate.Do not upgrade useless cards to high levels just for XP.
+The Secondary Source: Clan Donations
+
Many players are stingy, refusing to donate cards because they want to hoard everything for themselves.
+
You are essentially converting cards you will never use into base hitpoints and currency.
+Donation TypeThe BenefitCommon CardsSmall amount of XP per card, but you can donate hundreds of them dailyRare and Epic CardsOnly donate if you do not use the card
+The Impact of King Levels
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You might wonder if grinding out that next account level is truly worth the massive gold investment.
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Furthermore, higher level towers deal more damage per shot, altering crucial interactions against enemy swarms.
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